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Designed especially for liquid transfer of LP-Gas from consumer bulk storage containers when used with a Check-Lok or equipped with an integral excess flow valve. May also be used for vapor LP-Gas service.

Unit of Measure

Specifications

Material

 N/A Brass

Rating

 N/A Underwriters Laboratories (UL®) Listed

Alternate Part Number

 N/A 7551P

Connection

Inlet Connection Size

 N/A 3/4 in

Outlet Connection Size

 N/A 1/2 in

Inlet Connection Type

 N/A Male National Pipe Thread (MNPT)

Outlet Connection Type

 N/A Female National Pipe Thread (FNPT)

Flow

Integral Excess Flow

 N/A false

Propane Flow at 1 Pounds Per Square Inch Gauge (psig) Pressure Drop Flow Coefficient (Cv)

 N/A 8.9 gpm

Accessories

Accessories

 N/A

Part Number - 3127U
Part Name - Hydrostatic Relief Valve

Part Number - 3165
Part Name - Vent Valve

Note

Note for Pressure Flow

 N/A

To obtain approximate flow at other than 1 PSIG pressure drop, multiply flow in table by square root of pressure drop. Example: 7550P at 9 PSIG = 13.3 x √9 = 39.9 GPM/propane. For NH3flow, multiple propane flow by 0.90.

Note for Excess Flow

 N/A

For NH3flow, multiply propane flow by 0.90.

Additional Information

Additional Information

 N/A

These liquid transfer valves are equipped with an integral excess flow valve for liquid transfer directly from the tank fitting, or without an integral excess flow for LP-Gas transfer through a Check-Lok®.

When equipped with an integral excess flow valve (7550PX), the valve should be mounted in a forged steel 3000 lb. half coupling. When mounted in a 1 1/4" x 3/4" NPT reducing coupling, the 3/4" female thread in this coupling must be full length - equivalent to a forged steel 3000 lb. half coupling.

The excess flow valve will not function properly if these specifications are not met. Refer to the Warning Bulletin in the Excess Flow Valve Section of this catalog.